Results 41 to 50 of about 229 (138)

Anthropogenic disturbances simplify frugivory interactions in Amazonia

open access: yesOikos, Volume 2025, Issue 7, July 2025.
Frugivory interactions are essential ecological processes for the regeneration of tropical forests, ensuring ecosystem resilience following disturbances. However, little is known about how frugivory interactions are shaped by anthropogenic disturbances, especially in Amazonia – one of the most biodiverse ecosystems on Earth.
Liana Chesini Rossi   +9 more
wiley   +1 more source

Molecular phylogeny and systematics of Neotropical toucanets in the genusAulacorhynchus(Aves, Ramphastidae)

open access: yesZoologica Scripta, 2011
Bonaccorso, E., Guayasamin, J. M., Peterson, A. T. & Navarro‐Sigüenza, A. G. (2011). Molecular phylogeny and systematics of Neotropical toucanets in the genusAulacorhynchus(Aves, Ramphastidae). —Zoologica Scripta, 40, 336–349.We studied the phylogenetic relationships in the genusAulacorhynchus, an assemblage of Neotropical toucanets distributed ...
Bonaccorso, Elisa   +3 more
openaire   +1 more source

Bird perches and artificial bat roosts increase seed rain and seedling establishment in tropical bracken‐dominated deforested areas

open access: yesRestoration Ecology, Volume 32, Issue 7, September 2024.
Tropical forests are being reduced by human activities. The use of fire for agricultural expansion generates areas dominated by the bracken fern Pteridium, where forest regeneration is slow. This may be caused by seed limitation, especially of animal‐dispersed seeds, due to the absence of seed dispersers from the forest in deforested areas, calling for
Cesar Mayta   +5 more
wiley   +1 more source

Breeding Aspects of the Toco Toucan and the Chestnut-eared Aracari (Aves, Ramphastidae) in the Brazilian Cerrado

open access: yesInternational Journal of Zoology and Animal Biology, 2022
Toucans are among the most conspicuous and famous birds in the Neotropics, but numerous aspects of their biology remain poorly known. The Toco Toucan (Ramphastos toco) and the Chestnut-eared Aracari (Pteroglossus castanotis) are commonly found in central Brazil, where studies on their breeding are scarce.
openaire   +1 more source

Patterns of variation in fleshy diaspore size and abundance from Late Triassic–Oligocene

open access: yesBiological Reviews, Volume 99, Issue 2, Page 430-457, April 2024.
ABSTRACT Vertebrate‐mediated seed dispersal is a common attribute of many living plants, and variation in the size and abundance of fleshy diaspores is influenced by regional climate and by the nature of vertebrate seed dispersers among present‐day floras.
Duhita Naware, Roger Benson
wiley   +1 more source

The genus Austrophilopterus Ewing (Phthiraptera: Philopteridae) from toucans, toucanets, and araçaris (Piciformes: Ramphastidae)

open access: yesZootaxa, 2005
Examination of material representing the 24 previously named species and subspecies of Austrophilopterus resulted in recognition of only 6 of these as valid species and 18 as synonymies, including a previously established junior synonym and 17 new synonymies. These 6 species are redescribed and illustrated. One new species, A.
Price, Roger D., Weckstein, Jason D.
openaire   +3 more sources

Constraints on avian seed dispersal reduce potential for resilience in degraded tropical forests

open access: yesFunctional Ecology, Volume 38, Issue 2, Page 315-326, February 2024.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Seed dispersal is fundamental to tropical forest resilience. Forest loss or degradation typically leads to defaunation, altering seed transfer dynamics and impairing the ability of forested habitats to regenerate or recover from perturbation.
Jack H. Hatfield   +4 more
wiley   +1 more source

Origem, ramificação e distribuição da artéria celíaca no tucano-de-bico-verde (Ramphastos dicolorus Linnaeus, 1766) Origin, ramification and distribution of the celiac artery in the green-billed toucan (Ramphastos dicolorus Linnaeus, 1766)

open access: yesPesquisa Veterinária Brasileira, 2013
O tucano-de-bico-verde (Ramphastos dicolorus) é uma ave encontrada nas florestas tropicais americanas e pertence à Ordem Piciforme, Família Ramphastidae. Neste trabalho objetivou-se descrever a origem, a ramificação e a distribuição da artéria celíaca do
Osório J. Silva Neto   +5 more
doaj  

Spot-billed toucanet Selenidera maculirostris (Aves: Ramphastidae): importance of citizen science and scientific data in investigating its occurrence in modified environments around the largest urban area in South America

open access: yesFrontiers in Bird Science
Toucans and toucanets are widely distributed in the Neotropical Region. Some species perform regional movements in search of food resources, but little is known about this behavior and the use of modified habitats.
Fabio Schunck   +3 more
doaj   +1 more source

Preface [A monograph of the Ramphastidae, or family of toucans]

open access: yesA monograph of the Ramphastidae, or family of toucans
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

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